- Add `UNSET` singleton - nullable dataclass overhaul ([607](https://github.com/fastai/fastcore/issues/607)) - Update `nullable_dc` to use `UNSET` instead of `None` - Rename `mk_dataclass` to `flexiclass` - `flexiclass` uses `UNSET` instead of `None` - Add `asdict`, like the `dataclasses` version but works on more types - Add `is_typeddict` and `is_namedtuple` - Flatten nested tuples in `ft`
1.7.0
Breaking Changes
- The FT structure has been changed so it no longer inherits from `list` ([606](https://github.com/fastai/fastcore/issues/606)) - `.list` property added so you can still destructure it - `__getitem__` now returns the approach child element - `__add__` adds children
1.6.9
New Features
- Handle embedded quotes in `to_xml` ([604](https://github.com/fastai/fastcore/issues/604)) - Skip dict and listy valued attrs if empty in `ft` ([603](https://github.com/fastai/fastcore/issues/603))
1.6.8
New Features
- stringify list values in `ft` attr vals ([602](https://github.com/fastai/fastcore/issues/602)) - Allow `__ft__` methods to return tuples ([596](https://github.com/fastai/fastcore/pull/596)), thanks to [Rahulbeniwal26119](https://github.com/Rahulbeniwal26119)
1.6.7
New Features
- Do not update `-` to `_` if special chars present in `ft` ([601](https://github.com/fastai/fastcore/issues/601))
1.6.6
New Features
- Add `FT.get(k,default)` ([600](https://github.com/fastai/fastcore/issues/600)) - Add `Safe` str and return it from `to_xml` ([599](https://github.com/fastai/fastcore/issues/599)) - Feat: add an `indent` flag for `to_xml()` ([594](https://github.com/fastai/fastcore/pull/594)), thanks to [phact](https://github.com/phact)